AJP Distributors Cylinder Head Stud & Nut Kit For Big Block Chevy 396, 427, 454 V8 Engines (1966-2000)

About This Product

Building or rebuilding a classic Big Block Chevy? This upgraded cylinder head stud kit is a serious upgrade over stock head bolts. It's made from high-quality chromoly steel with a black oxide finish for extra strength and corrosion resistance. The threads are rolled after heat treatment, giving them a tensile strength rating of about 180,000 PSI – way stronger than factory stuff, which helps prevent blown head gaskets and keeps everything sealed tight under pressure. The kit includes everything: 32 studs in different lengths (8 extended, 12 long, 4 medium, 8 short), plus 32 washers and 32 twelve-point hex nuts. It fits a huge range of Big Block Chevys from 1966 to 2000, including the 396, 402, 427, and 454 cubic inch engines (Mark IV, Gen V, and Gen VI). This is for serious engine builders – professional installation is highly recommended because proper torque sequence is critical. If you're pushing power or just want the most reliable seal, these studs are the way to go.